Solve 3*5div5+55-8*9=cos(2)

$$3 \times 5 \div 5+55-8 \times 9= \cos ( 2 )$$

Verify

Solution Steps

Evaluate trigonometric functions in the problem

$$3 \cdot 5 / 5 + 55 - 8 \cdot 9 = 0.9993908270190958$$

Multiply both sides of the equation by 5.

$$5\left(\frac{3\times 5}{5}+55\right)-40\times 9=4.996954135095479$$

Cancel out 5 and 5.

$$5\left(3+55\right)-40\times 9=4.996954135095479$$

Add 3 and 55 to get 58.

$$5\times 58-40\times 9=4.996954135095479$$

Multiply 5 and 58 to get 290.

$$290-40\times 9=4.996954135095479$$

Multiply 40 and 9 to get 360.

$$290-360=4.996954135095479$$

Subtract 360 from 290 to get -70.

$$-70=4.996954135095479$$

Compare -70 and 4.996954135095479.

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